Sewing machine



June 4, 1935. 'r. H. DE SPAIN 2,003,879

SEWING MACHINE Fi-led Sept. 11, 1935 ,9 Sheets-Sheet 1 lm luw 7.9 720708 82; O O 706 V g qnambwesp m w W M June 4, 1935.

T. H. DE SPAIN 2,003,879

SEWING MACHINE 9 Sheeis-Sheet 2 Filed Sept. 11, 1933 1 hmw WNW RR M o 0PM. llll I! l I! ll 5 I N m 6 i i wu m Sq mw H r HR NW @Q mN m Qm, mm. m/W Mn v w NW NR 1 4 \RA ow M m 4 m W 1 A w/ @Nw M |ll/.\!\ m hw m M Rm;JEN m m 1 N I- o Lm nvWN m mw i WN WM 7 mm m l mum NwMwN 3% 0 V 1i mw QRmm m i l 1 m5 y l 4 WI l w mlL NW, .BJ MW, 1 mm m Wm WM. mm m 1 1935-'r. H. DE SPAIN 2,003,819

SEWING MACHINE Filed Sept. 11, 1933 9 Sheets-Sheet 3 u ail, I a: j

Awful! I i i June 4,- 1935. T. H. DE SPAIN 2,003,879;

SEWING MACHINE Filed Sept. 11, 1935 9 Sheets-Shes. 4

91267 Z jg June 4, 1935. T. H. DE SPAIN SEWING MACHINE Filed Sept. 11.1955 9 sheets sheet 5 Thomas HDeS a IL L,

'Wwwwws June 4,1935. 4 T. H. DE SPAIN 2,003,879

SEWING MACHINE Filed Sept. 11, 1955 9 Sheets-Sheet 6 I R\ l SH: {Ms

SEWING MACHINE 9 Sheets-Sheet 7 Filed Sept. 11, 1933 M m a w e z D 5 F,g E M a 7 m 6. Z aw 2% m. *l w I June 4, 1935. I T. H. DE SPAIIN SEWINGMACHINE Filed Sept. 11, 1953 9 Sheets-Sheet 8 ThomaaHDeSpqzlzz,

June 4, 1935. T, H, DE SPAIN 2,003,879

SEWING MACHINE Filed Sept. 11-, 1955 9 Sheets-Sheet 9 A$=4 Q I Q r, J66

I Qx 90 awe/MM ThommsflDeSpW,

1; is engaged in the work.

presser foot is intermittently raised to relieve pressure on the goodseach time the needle pene-" Patented June 4, 1935 UNITED. STATES PATENTOFFICE 2,003,879 SEWING MACHINE David and, Samuel Lewis ApplicationSeptember 11, 1933, Serial bio. 689,033

9 Claims. Cl. 112-159) sides of said support, with a presser foot forThis invention relates to improvements in sewing machines andparticularly to a sewing machine for uniting braided fabrics ormaterials.

In stitching together pieces of braided material, it is desirable, in agreat many instances, to so form the seam that the individual stitcheswill not be very noticeable, in other words, will appear to besubstantially continuations of the threads or ends of which the braidedmaterial is 10 made. For this reason the primary object of the inventionis to provide a machine which will produce stitches in such fashion thatthey will lie substantially parallel with, or in the same planes orlines as the threads or ends constituting the braided material, asdistinguished from a seam formed of stitches that extend at substantialangles to said threads or ends.

More specifically, the invention contemplates a machine wherein theneedle is not only actuated to penetrate the goods operated upon, but isalso manipulated automatically so as to move it transversely andlongitudinally of the seam each time it penetrates the goods, with theresult that what might be termed a zig-zag stitch is formed, the

35 several stitches forming continuations of, or lying in substantiallythe same lines as, the threads or ends constituting the braidedmaterial. conjunction with this transverse and longitudinal movement ofthe needle, means are also provided 30 for shifting the shuttle of thesewing machine transversely of the seam. being formed.

Another object is to provide actuating mechanism which will efiect theforegoing movements of the needle and shuttle in proper timed rela- 55tion to each other and which mechanism is capaole of a single adjustmentfor varying the throw or extent of movement imparted to theneedle andshuttle transversely of the seam being formed.

A still further object is the provision of a presser foot yieldinglyurged toward work passing under the needle, said presser foot beingprovided with actuating mechanism which will relieve pressure I of thepresser'foot on the work when the needle trates the goods. This ishighly desirable, for instance, where the operator is working on braidedmaterial in the formation of a hat body, it

being necessary to turn the fabric when making what is known as thebutton in the crown of av hat. g

Described more in detail, there is a work sup- 55 portand a shuttle andsewing needle at opposite In other words, the

holding the work in proper position on said support. As is customary,the needle passes through the presser foot but, in the present instance,the presse foot is formed with an elongated arcuate slot extendingdiagonally of the seam formed in ated from the main drive shaft by meanswhich will intermittently rotate it in proper timed relation to thewithdrawal of the needle from the goods, in order to advance or feed thegoods to and from the needle.

With these and other objects in view, the invention consists in certaindetails of construction and combinations and arrangements of parts, allas will hereinafter be'more fully described and the novel featuresthereof particularly pointed out in the appended claims.

In the accompanying drawings:

Figure 1 is a side elevation of a machine embodying the presentinvention;

Fig. 2' is a view, partly in elevation and partly in vertical section,taken longitudinally of the machine;

Fig. 3 is an end view of the machine with the cover plate of the frameremoved to show a por tion of the driving connections;

Fig. 4 is an end view of the opposite end of the machine illustratingthe needle and with the cover for the shuttle housing opened toillustrate the shuttle;

Fig. 5 is a transverse vertical sectional view on the line 55 oi Fig. 2;r

Fig. 6 isa substantially horizontal sectional Figs. .10 and 11 are viewsto Figs. 8 and 9, but illustrating the needle in theposition at theopposite side of the seam;

Fig. 12 is a plan view of the work support illustrating also the feedroller and the guide means for the goods being fed along the worksupport Fig. 13 is a similar view, but showing the presser footsuperposed above the feed roller;

Fig. 14 is a sectional view on the line |4-|4 of Fig. 2;

Fig. 15 is a detailed perspective view illustrating the pivotal supportfor the needle;

Fig. 16 is a transverse sectional'view on the line |6|6 of Fig. 12,illustrating the driving connections for the feed roller;

Fig. 17 is a vertical sectional view taken longitudinally of thestructure illustrated in Fig. 16; Fig. 18 is a vertical sectional view'on the line |8|8 of Fig. 17;

Fig. 19 is a similar view on the line |9'l9.of Fig. 17;

Fig. 20 is a vertical view,-partly in section, illustrating theactuating mechanism for relieving tension on the presser foot when theneedle is engaged in the goods;

Fig. 21 is a sectional view on the line 2 |--2| of Fi 20;

Fig. 22 is a detailed perspective view of the hub portion of the rockerarm for imparting the sewing movement to the needle;

Fig; 23 is a vertical sectional view through the presser foot rod, saidview being taken at right angles to Fig. 20; and

Figs. 24 and 25 illustrate specimens of the seam formed by the presentmachine.

Preferably, a goodly portion of the driving connections for the severalinstrumentalities are enclosed in a housing or frame 30, which isprovided at its base portion with apertured lugs' 3| for mounting themachine on a suitable support. At its upper portion, housing 30 isprovided with a projecting or over-hanging arm 32 and at its outerextremity, said arm is formed with a vertically extending portion 33substantially U-shaped in cross-section. Journaled in the main frame isthe driving shaft 34 having mounted thereon the grooved pulley 35,whereby power from any suitable source may be transmitted to said shaft.At its base portion, the frame 30 is also formed with a projectingportion 36 extending beneath, but spaced from, the over-hanging arm 32.This portion 36 constitutes the housing for the shuttle, being open atits end and bottom, although the end is adapted to be closed by a hingedcover 31. The upper or exterior surface of said portion 36 isconstituted. in part by metal having a smooth finish which serves asthe. work support 38. slidably mounted in bearings 39, within the lowerportion of the main frame and extension 36, is a shaft 40 carrying theshuttle 4|. The said shuttle is of the usual rotating shuttleconstruction and need not bedescribed in detail. Rotary motionisimparted to shaft 240 from a crank 4| on the main drive shaft 34, saidcrank being corinected by a pitman 42 to the shaft, by means of a roller43 engaging in a slot 44 in a block 45 mounted on the end of shaft 40,said slot extending radially with respect to the axis of shaft 40.Pitm'an 42 has a slot extending longitudinally thereof (see Fig. 3) andprojecting through said slot is a stub shaft 46 mounted in the end plateof the frame. Journaled on shaft 46 for rocking motion, is a block 41which engages the side walls of the slot in said pitman. In this way,movement of the upper end of pitman 42 by crank 4| causes the roller 43to move radially of shaft 40 so as to vary the speed of rotation of thelatter shaft, whereby a dwell in the rotary'movement of the shuttle 4|will occur at the proper predetermined times for the purposes ofpermitting the shuttle to-properly cooperate with the needle when thelatter is caused to penetrate the goods in the making of a stitch.

The needle, indicated at 48, is detachably mounted on a bar 49 slidablein bearings 50, of what, for convenience, will be termed the needlesupport, said support being pivoted on a pivot pin 5|, carried by aplate 52 mounted in the depending portion 33 of the frame. At its upperend, the needle bar 49 carries an enlargement 53 provided with alaterally projecting pin 54 which slidably engages in a bearing 55carried at the extremity of the rocker arm 56. Rocker arm 56 is pivotedintermediate its ends on the overhanging arm 32 and at its opposite endit is connected by a pitman 58 to a crank 59 on the main drive shaft 34.By means of this connection with the main drive shaft, rotary motion ofsaid shaft will impart a reciprocatory motion to the needle 48, theneedle rod 49 reciprocating vertically in its bearings 50. Thisreciprocatory motion of the needle causes it to periodically penetratethe goods for the purpose of forming stitches,

as will be readily understood, the thread carried by the needle beinginterlocked, so to speak, with the thread carried by the shuttle 4|.

Usually, in the formation of stitches, the needle thread simply goesback and forth across the seam, but in sewing or stitching braidedmaterial, it is desirable to manipulate the needle in such fashion thatthe needle thread in the finished seam will lie parallel, andsubstantially in line with, the ends or threads constituting the braidedfabric. To accomplish this, it is necessary, therefore, to move theneedle in such fashion that each time it penetrates the goods, it willbe positioned both transversely and longitudinally of the seam from theprevious point at which it penetrated the goods. Hence, the mounting ofthe reciprocating needle arm 49 in the pivoted bearing members 50. Inother words, the needle is pivoted in such fashion that it is capable ofbeing needle arm 49, between the two bearings 50, is

asleeve 60, and said sleeve carries a post 6| on .which is journaled oneend of a link 62, the opposite end of said link being pivotally attachedto one arm of a lever 63. Lever 63 is pivoted intermediate its ends atI64 and its opposite arm 63a is pivotally attached to a connecting rod64 which carries a pin 65 having a T-shaped head 66 engaging in anarcuate slot 61 of T-shaped crosssection formed in "a block '68 pivotedat 69 in the main frame. Block 68 is pivoted at its upper end and at itslower end it carries a pin 10 which projects into a cam slot in a cam Hin the interior of the machine frame. The inner extremity of pin 10carries a roller which engages the walls of a cam slot in cam II andsaid cam is mounted on a shaft 12 carrying a gear 13 which meshes with agear I4 on the main drive shaft 34. In other words, the crank portion 59of the main aooaevo i 3 drive shaft 34, through the pitman 58 and rocklever 58 reciprocates the needle so as to cause it to penetrate thegoods while the rotation of shaft I2 and gears I3, I4, causes the needleto be rocked back and forth about the pivot pin 5| through theinstrumentalities just described, the timing of the several parts beingsuch that this rocking motion is imparted to the'needle during the timeit is disengaged from the goods.

It is, of course, necessary that the shuttle should also movetransversely of the seam being formed, in order that it shall always bein operative associationwith the needle. For this purpose, the pin 85extends through a bushing I5 on which the link 64 is journaled and alsojournaled on said bushing is a second link I6 whose opposite end hasattached thereto one arm 11 of a lever pivoted at 1.8, the other arm I9of said lever projecting through an opening 88 in the main frame andhaving at its extremity a roller 8I which engages between stops 82 onthe shuttle shaft 48, whereby rocking motion of sfild levers 11, I8,will cause said shuttle shaft to be reciprocated in its bearings, itbeingunderstood, of course, that this reciprocatory motion of theshuttle shaft is properly timed with respect to the rocking motionimparted to the needle 48, as just described.

One use to which the present machine is especially adapted is theproduction of ladies hats which are made from a continuous strip ofbraided material laid in spirals or convolutions with adjacentconvolutions attached to each other by stitching. In forming these hatbodies, it is quite difficult to form what is called the button" in thecrown of the hat, unless the operator can turn the fabric or materialduring the sewing operation. For this reason, the present machine 1comprises means for automatically relieving the tension on the presserfoot during the intervals when the needle is in engagement inthe goods.In the preferred construction, the presser foot 83 is mounted on thelowerextremity of a bar 84, slidably mounted in the depending portion 33of the frame, the upper extremity of said bar projecting somewhat abovethe frame and having mounted thereon a block 85, on which there ispivoted a cam member 86, adapted to engage the upper surface of theframe, so as to elevate the presser foot when desired. That is, the cammember 86 can be turned on its pivot so that the caniming action willraise the presser foot out of its operative position. This, however, issimply for the purpose of elevating the presser foot only when thelatter is to be temporarily rendered totally inoperative. Normally, thepresser foot is urged downwardly into operative engagement with goods onthe work support by a spring 8'I positioned between a stop 88 on 'thepresser foot bar 84 and the inner surface of the frame 33. The presserfoot is provided with a slot 48a through which the needle may beprojected. To intermittently relieve the tensionon the presser foot,there is slidably mounted in the frame 33 a pin 89 engageable by one armof a lever 98 pivoted on a post QI in the end closure 33a of the frameportion 33. The other arm of said lever 98 is pivotally attached to alink 82, and the latter, in turn, is pivoted, at 93, to an arm 94journaled on the hub 56a of the rock lever 56. Said hub is provided witha recess 58b adapted to be engaged by a pin 95 slidably mounted'in thearm 94 and yieldingly urged toward said hub by a spring 96. The pin 95is provided with a knurled head 91 and with projections, or lugs, in theform of a cross-pin 98 capable of engaging in a slot 99 in the end ofarm 84, so that, if desired, the arm 94 may be disconnected from thebushing 56a by withdrawing the pin and turning it so that the cross-pin88 is out of registry with slot 99. However, so long as the pin 85 isentered in the recess 58b in the hub of the rock lever 58, the rockingmotion of the rock lever will cause lever 98 to be rocked, so that eachtime that arm of lever 98 which is in engagement with pin 89 is raised,said pin will be pushed upwardly into engagement with the under face ofblock 85 on the upper extremity of presser foot bar 84, therebyelevating the presser foot temporarily. This upward motion of theoperative arm of lever'98 to elevate the presser foot willbe effected bylink 92, when the left-hand end (as viewed in Fig. 2) of rocker arm 56is depressed, or, in other words, when the needle is depressed intoengagement with the goods on the work support. Therefore, each time theneedle penetrates the goods, the presser foot is raised, or the tensionthereon relieved, so that the operator is free to turn the goods as hewishes. As mentioned thisis important in the formation of the so-calledbutton in the crown of a hat.

The work is adapted to be fed along the work supporting surface 38 by afeed roller I88 intermittently rotated by mechanism which will be laterdescribed. Referring to Figs. 12 and 13,

the work support is provided with suitable guides for the work to be fedunder the presser foot. Preferably, these guide means consist of acomparatively thin strip of metal arranged on its edge, as indicated atI8I, said guide or strip being pivoted at I82, whereby it may be raisedor swung away from the work surface. A second guide member I83, whichyieldingly urges work toward the guide member I8I by meansof spring I84mounted thereon, is also positioned on the work surface. This guidemember I83 is provided with a lateral extension I85 in which there is anelongated slot I86 for reception of a guide block I81, the guide blockbeing secured to the frame by a screw I88. Guide I83 is also formed witha projection I 89, through which extends a guide bar II8 mounted in theguide block I81. The lower edge of the lateral extension I85 is formedwith a rack III adapted to engage with a pinion II2 on the sleeve-likehub II3 of a knurled roller II 4 journaled on a stub shaft H5 projectingoutwardly from the frame. The latera1 extension I85 is adapted to slideon its guide block, so that by turning the knurled roller H4 in onedirection or the other, the guide member I83 may be adjusted toward oraway from the guide member IIlI to accommodate goods of various widths.

For intermittently rotating the feed roller I88, there is mounted on theshuttle shaft 48 a cam member H6, which is engaged by the bifurcated endof a lever III, pivoted on a shaft II8 journaled in a bracket I I 9 atthe side of the machine. Adjustably secured in a slot I28 in lever IIIis connecting link I2I, which is pivotally attached, at I22, to a leverI23 adapted to actuate an overrunning clutch arrangement for driving theshaft which carries the feed roller. Thisclutch arrangement consists ofa clutch member I24 mounted on a shaft I25, and having associated withit a series of frictional driving elements, preferably in the form ofball bearings I26, said clutch member and its frictional drive elementsbeing received in ,circular recesses in lever I23 and casting I35. Alsomounted on shaft I25 is a pinion I21, which engages a gear I28, and thelatter engages a pinion I29 mounted on the shaft I30 of the feed rollerI00. The disposition of the balls I26 in the cavity in lever I23 is suchthat a gripping action will be exerted by the lever on the clutch memberwhen said lever is moved in one direction so as to rotate shaft I25,but, when the lever is moved in the opposite directioni it will slip orride over the balls I26. In other words, as the end of lever I23, towhich link I2I is connected, is elevated, it will slide over the ballsI26, the latter being cushioned against springs I3I, and no motion willbe imparted to shaft' I25, but, as that end of the lever is de-'pressed, the balls I26 will be wedged between the wall of the recess inthe lever and the inclined surfaces I32 of clutch member I24, so-as torotate shaft I25 and pinion I21 in the direction of the arrow in Fig.16. This motion of shaft I25 and pinion I21 will impart motion to gearsI28, I29, and shaft I30, as also indicated by the arrows in Fig. 16. Byadjusting link I2I in slot I20 of lever II 1, the extent to which thework is fed each time may 'be varied to .alter the inclination of eachpair of juxtaposed stitches. It must not, however, be possible for thefeed roller I00 to be rotated in the opposite direction. For thispurpose, clutch member I24 is provided with a second series of balls I33interposed between inclined surfaces I34 on the clutch member and thewall of the circular recess in the portion I35 of the frame; It will beseen how this second series of balls prevent backward motion, so tospeak, of shaft I21. That is, if there is any tendency on the part ofthe clutch member I24 to rotate when the end of lever I23 which isconnected to link I2I is elevated, the balls I33 will bind between theirinclined surfaces I34 and the inner; surface of a casting I35, and thusprevent such backward motion of the clutch mem-- ber I24 and shaft I25.Consequently, the feed roller I00 will be intermittently rotated only inthe direction in which the material is to be fed across the workingsurface. it will be observed that with the feed roller shaft I30journaled in fixed bearings there is no movement of the feed rollerI00'toward and'away from the work as in the case of the usual type offeed dog used in sewing machines. This results in a more positivefeeding of the material so that the material can be fed a very shortdistance each time the feed roller is turned. A very advantageousfeature of such a construction is that the individual stitches can beformed very close to each other. In fact, each successive stitch can bemade to abut each preceding stitch. While this is very important inworking on closely braided fabrics, it will be appreciated that thearrangement is applicable under other conditions where a maximum numberof. stitches is desired in a minimum imit of length of material.

To assist in feeding the thread to the tension roller I36, there ismounted on the main drive shaft a cam I31, having a cam slot I38therein, which receives a cam roller I 33, said cam roller beingjoin'naled on a pin at the lower extremity of a lever I40, pivoted atthe side of the machine. Pivotally attached to said lever I40 isaconnecting link I which also isattached to one arm of abell crank leverI42,'pivoted at I43, and

whose other arm is provided at its extremity I44 with an eye, whichserves as a guide for the thread. Rocking motion imparted to the end I44aooas'ze of the bell crank lever by the connections just described,intermittently feeds the thread to the tensioning roller I36 from whenceit passes to the eye of the needle .48.

Assuming the machine to be threaded up and the guide members IM and I 03properly positioned with respect to the work support and presser foot, acycle of operations of the machine will now be described. Starting withthe needle and shuttle in the positions in which they are shown in Figs.1 and 2, and referring particularly to Fig. 2, continuation of therotary motion of the main drive shaft 34 in a clockwise direction,as-indicated by the arrow in Fig. 2, will result in the continuedrotation of cam H in a counter-clockwise direction, with the result thatthe slotted member 68 towhich connecting rods 64 and 16 are attachedwill be rocked to the right. This movement of said connecting rods willrock levers 63 and 11, so as to move the shuttle to the left, or to whatwill be termedthe left-hand side of the seam being formed, and will alsorock the needle supporting bearings 50 to also carry the needle to theleft-hand side of the seam. At the same time, rocker arm 56 is rocked,so that the needle 48 is depressed downwardly through the arcuate needleslots 48a, 48b, in the presser foot and work supporting surface. As theneedle 48 approaches the lower extremity of its movement, the link 92will rock the bell crank lever to relieve the tension on the presserfoot. The several parts-are shown in this position in Figs. 8 and 9, theneedle 48 being shown at the lefthand end of slot 48a. At this time, theposition of the rocker arm 56 will be reversed-from that shownin Fig. 2,but, upon continued rotation of the drive shaft 34, the rocker arm willbe restored to the position shown in Fig. 2, so as to fully elevate theneedle but the ratio of gears 13,

14, is such that cam 1I will have made only a half revolution, so that,during the next complete revolution of gear 14, cam 1I will cause thelevers 63 and 11 to be rocked in the opposite direction whereupon theshuttle shaft will be restricted to position the shuttle under theright-hand side of the seam being formed and to position the needle 48in registry with the opposite end of the arcuate slot 48a in the presserfoot, as shown in Figs. 10 and 11, so that, by the time it engages thegoods,

it will penetrate the goods at the right-hand side of the seam. Aspreviously pointed out, this movement of the needle from the left-handside of the seam to the right-hand side of the seam will also effect amovement of the needle longitudinally of the seam, so that the stitchthereupon formed across the seam will extend diagonally of the seam andsubstantially iri line with the ends, of threads, of the braided fabric.This result is clearly shown in Figs. 24 and 25, Fig. 24 illustrating aseries of convolutions-of braided material stitched together, as in thecase.of forming a hat, and Fig. 25 illustrating aseam between two piecesof braided material. As previously pointed out, it will also beunderstood that the pin and 'slot connectionabetween pitman 42 and slot44in the enlargement 45 of the shuttle shaft 40 and the pivotal mountingof pitman 42, at 46, is such that timing of the shuttle shaft willinsure the proper dwell in the rotary motion of the shuttle at the timethe needle penetrates the goods. It might be shaft, a shuttle mounted onsaid shaft, means The pivot pin for the guide bearings 50 is carried bythe plate 52 and the latter is provided with a curved surface bearingagainst a similarly curved surface on the depending portion 33 of theframe, the plate being held in any desired position on the curvedsurface of the frame by means of screw bolt I45. By relieving theclamping action of the bolt I45, the plate 52 may be adjusted on thecruved surface of the frame 33 so as to vary the inclination of thestitch formed in the goods. Referring to Fig. 14, for instance, if theplate 52 is adjusted to move pivot pin to the left, or toward the linein which the seam in. the goods is formed, a flatter stitch will bemade, as shown in Fig. 25. On the other hand, if the plate is adjustedto move the pivot pin toward the right,

' or away from, the line of the seam being formed, a

greater angle is given to the stitch, as shown in Fig. 24.

The article produced on the present machine is not claimed herein,having been made the subjectmatter of a separate application.

What I claim is:

1. In a sewing machine, the combination of a support on which work isfed, a sewing needle, a presser foot having a slot thereon, means forprojecting and retracting said needle through said slot and work, meansfor advancing the work each time the needle is retracted, said slotextending diagonally of the line of movement of work fed along saidsupport, and means for reciprocating said needle longitudinally of saidslot.

2. In a sewing machine, the combination of a work support, a sewingneedle, a bobbin, means for actuating said needle to penetrate work onsaid support, means for advancing the Work each time the needle iswithdrawn therefrom, means for movingsaid needle transversely andlongitudinally of the seam formed by the needle in the work, a rotatableshuttle, and means for reciprocatingsaid shuttle transversely of theseam in timed relation to the transverse movement of the needle.

3. In a sewing machine, a pivoted needle support, a needle, means forreciprocating said needle in its support, a presser foot having a slottherein, said slot extending diagonally of the seam formed by thereciprocating needle, and means for rocking the needle support to movethe needle longitudinally of said slot.

4. In a sewing machine, a, work support, a needle, means for actuatingsaid needle to penetrate work on said support and form a seam therein,means for advancing the work each time the needle is withdrawntherefrom, a rotatable shuttle for reciprocating said shaft transverselyof a seam formed'in the work, and means for moving said needletransversely'and longitudinally of said seam in timed relation to thereciprocation of said shuttle shaft.

5. In a sewing machine, the combination of a drive shaft, a pivotedneedle support, a needle in said support, a shuttle, a feed roller,means operable by said shaft for rocking said support to move the needletransversely and longitudinally I operable bysaid shaft forintermittently rotating said feed roller.

6. In a sewing machine, the combination of a drive shaft, a needle, ashuttle, a pair of levers, connections between one of said levers andsaid needle, connections between the other of said levers and saidshuttle, and means on said shaft for rocking said levers to move saidneedle transversely and longitudinally of a seam formed thereby and tomove said shuttle transversely of said seam.

7. In a sewing machine, the combination of a needle, a shuttle, a pairof levers, connections between one lever and said needle, connectionsbetween'the other lever and said shuttle, and means for rocking saidlevers to move said needle transversely and longitudinally'of a seamformed thereby and for reciprocating said shuttle transversely of saidseam.

8. In a sewing machine, the combination of a sewing needle, meansforreciprocating said needle to penetrate the work, means for moving said.

needle to successive positions at opposite sides of a seam formed in thework and spaced longitudinally of said seam independently of anymovement of the work, and means for advancing the work each time theneedle is retracted from the work.

